if you need a spread sheet model  message me will send you the one my group use.Luis Maqueira Miami Multifamily Partners

Also know where your local laundromat is and what the pickup/delivery service is.

Your model is awesome. 

STR is a slowly dying model that exploded in the last 10 years and correcting big time.

Quote from @Joel Oh: Your business must make money day 1.It is so much more difficult to fix the model that is not making money than starting a new business that makes money day 1. 

Send a written notice (yes, paper) to the tenants with proof of delivery required (the postal carriers have this time to an art form; it's inexpensive and you get confirmation via email or receipt very quickly; it does not require the tenant to sign - it just confirms that the notice was delivered.A paying, respectful tenant is golden.

Worth noting that most firms will do two types of studies (although they may be named differently) - detailed engineering and modeling.

. - Rents are also a function of supply - 2024 saw the most new construction of multifamily units in American history (nearly 575,000 estimated 2024 deliveries of new multifamily inventory), and 2025, while not a record setting year, will see deliveries top 500,000 again - a huge supply increase. 

Their pay-as-you-go model allows flexibility, so you only pay for what you need.

Example: If a business buys an oven and it costs $5,000, and $1,000 for installation and setup, and $200 of delivery and transport fee.